The system shown begins its motion from rest and each component moves with a constant acceleration. If the relative acceleration of block C with respect to collar B is 30 mm / s ^ 2 downwards, and the relative acceleration of block A with respect to block D is 55 mm / s ^ 2 downwards. Answers: 1)The speed of block A after 5 s 2)The change in the position of block B after 3 s

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.